Volatiles released during the weathering of PVC | Zendy

Carlsson D. J. | Zendy; Krzymien M. | Zendy; Worsfold D. J. | Zendy; Day M. | Zendy

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Volatiles released during the weathering of PVC

Author(s) -

Carlsson D. J.,

Krzymien M.,

Worsfold D. J.,

Day M.

Publication year - 1997

Publication title -

journal of vinyl and additive technology

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.295

H-Index - 35

eISSN - 1548-0585

pISSN - 1083-5601

DOI - 10.1002/vnl.10174

Subject(s) - vinyl chloride , thermal desorption , weathering , desorption , adsorption , hydrogen chloride , environmental chemistry , polyvinyl chloride , chemistry , materials science , chemical engineering , organic chemistry , geology , geomorphology , copolymer , polymer , engineering

Volatile organic compounds and organochlorine species liberated by UV exposure of poly(vinyl chloride) (PVC) siding samples have been identified and preliminary quantification made. These volatiles included those remaining in a PVC sample after weathering or laboratory UV exposure and which could be released by thermal desorption. In addition, by using a flow‐through cell and granular carbon adsorbents, volatile species directly desorbed during laboratory UV exposure were measured. Total directly desorbed organochlorine compounds were about 1/20 of the weight of hydrogen chloride as measured by conductometric analysis, Quite similar products were observed from old (∼1984) and current (1995) commercial siding formulations. Observed volatile compounds are proposed to come from the TiO 2 ‐controlled photo‐oxidation of both PVC and its additives such as impact modifiers.

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